> The 20 francs gold *Source : https://meilleur-rachat-or.fr/en/guides/20-francs-rooster-gold-coin/* --- ● Guide # 20 francs gold Rooster (Marianne): value and buy-back Published on **26/07/2026** · By **Sébastien Joumel** In brief **The 20 francs gold "Rooster" (Marianne) coin contains 5.806 g of fine gold (6.45 g at 900‰). It's a very common, highly liquid investment coin: its value follows the gold rate first, with a generally low premium.** Here's how to identify it, estimate its value and sell it at the right price. ## What the 20 francs Rooster is Struck from **1899 to 1914**, the 20 francs gold Rooster shows Marianne on the obverse and a rooster on the reverse. Its specs: **6.45 g** total, **900‰** fineness, i.e. **5.806 g of fine gold**, 21 mm diameter. It's the most widespread "napoléon", with the same gold weight as the 20 francs Napoléon III. ## How to estimate its value A 20 francs Rooster's value rests on two elements: its **intrinsic value** (5.806 g × the day's gold rate) and any **premium** (the gap between the coin's price and its metal value). On such a common coin, the premium is usually low. To read the rate, see our guide [understanding the gold rate](https://meilleur-rachat-or.fr/en/guides/cours-de-lor-comprendre/). ## Selling it at the right price Compare several **buy-back rates** (see [how to compare](https://meilleur-rachat-or.fr/en/guides/taux-de-rachat-or-comment-comparer/)): a good buyer states the rate, the calculation and its margin. A coin in good condition, not cleaned, sells better. Beware counterfeits: weight, diameter and sound are clues (see also [investment gold coins](https://meilleur-rachat-or.fr/en/guides/pieces-or-investissement/)). ## Rooster or Napoléon III? Both weigh the same (5.806 g of fine gold) and are worth the same by weight. The [20 francs Napoléon](https://meilleur-rachat-or.fr/en/guides/cours-napoleon-or-20-francs/) often refers to all French 20-franc gold coins; the Rooster is the Republic version. For buy-back, the premium difference is minimal. ## Frequently asked questions What is a 20 francs gold Rooster worth? Its value rests on its 5.806 g of fine gold (intrinsic value = 5.806 g × the day's rate), plus a generally low premium as the coin is very common. Compare several buy-back rates for the best price. How much gold is in a 20 francs Rooster coin? It weighs 6.45 g at 900‰ fineness, i.e. 5.806 g of fine gold, like the 20 francs Napoléon. It's a very liquid investment coin. Does the 20 francs Rooster have a numismatic premium? Usually low, as the coin was struck in large numbers (1899-1914). Some years or exceptional grades may carry a small collector premium, but most of the value comes from the gold. ## Read also [ Guide 40 francs Napoléon gold coin: value and buy-back ](https://meilleur-rachat-or.fr/en/guides/40-francs-napoleon-gold-coin/)[ Guide 50 francs Hercule silver: value and buy-back ](https://meilleur-rachat-or.fr/en/guides/50-francs-hercule-silver-coin/)[ Guide Selling a 50 Pesos Gold Coin (Centenario) in France ](https://meilleur-rachat-or.fr/en/guides/50-pesos-gold-coin-centenario/) ## Sell at the best price near you Compare the gold buyers in your city. [See the rankings](https://meilleur-rachat-or.fr/en/gold-buyback/)